Evidence lacking to determine whether preoperative analgesic use reduces post dental treatment pain for children.

Data Sources: The Cochrane Oral Health Group Trials Register, CENTRAL, Medline, Embase, LILACS and the ISI Web of Knowledge and relevant dental journals were searched with no restrictions.

Study Selection: Randomised controlled trials (RCTs) of analgesics given before dental treatment versus placebo or no analgesics in children and adolescents ≤ 17 were included. Those having treatment under sedation or general anaesthesia were excluded.

A comparative study of two CEREC software systems in evaluating manufacturing time and accuracy of restorations.

This study compared the manufacturing times and the accuracy of proximal and occlusal contacts on restorations produced by two different versions of CEREC 3 software, COS and 3D. Fourteen casts containing pre-existing inlay and onlay preparations of premolars and molars were mounted on articulators. A bite registration was made in maximum intercuspation.